Abstract: The vibration caused by blasting is an important factor affecting the safety of blasting production and the stability of slope rock mass.Therefore, it is necessary to carry out research on the elevation effect of blasting vibration.In this paper, the relationship between step height and blasting vibration elevation effect is studied by on-site blasting vibration measurement and concrete model blasting vibration test.It is concluded that the elevation has both amplification effect and attenuation effect on the blasting vibration, and the attenuation effect is dominant, and the amplification effect is supplemented.And in the region where the elevation amplification effect appears obvious, the magnification increases first and then decreases with the increase of the elevation difference.From the overall point of view, when a measuring point is at the same horizontal distance from the source, the vibration velocity of the step is lower than the flat ground, except for the region where the elevation amplification effect is obvious.